.. py:function:: create_mapwi(size, condition, default)

   
   Return the expression tree for the higher-order construct for mapdwi creation.


   :Parameters:

       **size** : :obj:`EX`
           Number of iterations.

       **condition** : :obj:`EX`
           Initial value of the iteration condition.

       **default** : :obj:`EX`
           Default value of the iteration.

   :Returns:

       :obj:`ET`
           ..













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